This week, 10 Internet Software & Services stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

Qihoo 360 Technology Co., Ltd. ADR Class A (QIHU) boosts its rating from a B to a A this week. Qihoo 360 Technology Co., Ltd. ADR Class A provides Internet and mobile security products in the People’s Republic of China. The company also gets A’s in sales growth, earnings growth, and return on equity. For more information, get Portfolio Grader’s complete analysis of QIHU stock.

Alibaba Group Holding Ltd. Sponsored ADR’s (BABA) ratings are looking better this week, moving up to a B from last week’s C. The company also gets A’s in sales growth, earnings growth, earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of BABA stock.

Reis, Inc. (REIS) shows solid improvement this week. The company’s rating rises from a C to a B. Reis, Inc. is engaged in the business of providing commercial real estate market information and analytical tools for its customers. The company also gets A’s in earnings surprise and earnings momentum. For more information, get Portfolio Grader’s complete analysis of REIS stock.

Q2 Holdings, Inc. (QTWO) gets a higher grade this week, advancing from a C last week to a B. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of QTWO stock.

This week, 21Vianet Group, Inc. Sponsored ADR Class A (VNET) pushes up from a C to a B rating. 21Vianet Group, Inc. Sponsored ADR Class A provides carrier-neutral Internet data center services in the People’’s Republic of China. For more information, get Portfolio Grader’s complete analysis of VNET stock.

The rating of Weibo Corp Sponsored ADR Class A (WB) moves up this week, rising from a B to a A. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of WB stock.

Momo Inc Sponsored ADR Class A (MOMO) earns a B this week, jumping up from last week’s grade of C. The company also gets A’s in sales growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of MOMO stock.

Quotient Technology Incorporated (QUOT) improves from a C to a B rating this week. For more information, get Portfolio Grader’s complete analysis of QUOT stock.

This is a strong week for Rightside Group Ltd (NAME). The company’s rating climbs to B from the previous week’s C. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of NAME stock.

MeetMe, Inc. (MEET) is seeing ratings go up from a B last week to a A this week. MeetMe, Inc. a social media technology company, owns and operates social discovery networking platforms in the United States. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of MEET stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.